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US 5,399,641 AGranted
Method of controlling the polymerization of acrylates
AssigneeDow Corning Corporation
InventorMing-Hsiung Yeh
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Abstract
The present invention relates to a method of controlling the polymerization of acrylates using a catalyst which is selected from at least one of zinc, cadmium, or mercury halides in combination with free iodine to give acrylate polymers having narrow molecular weight distributions, via group transfer polymerization.
Claims18
A method of controlling the polymerization of acrylates, said method comprising
- (I) contacting and reacting
- A. an initiator and
- B. one or more acrylic monomers in the presence of
- C. a catalyst,
- for a time sufficient and at a temperature sufficient to create a polyacrylate polymer selected from the group consisting essentially of
- i polyacrylate homopolymers and
- ii polyacrylate co-polymers, said catalyst being a mixture of at least one metal halide compound selected from Zn, Cd and Hg halides, mixed with I.sub.2.
4 more elements
Dependencies are inferred from the claim text.